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contrast medium
noun
Medicine/Medical.
- a radiopaque substance injected into a part of the body, as the stomach or duodenum, to provide a contrasting background for the tissues in an x-ray or fluoroscopic examination.
contrast medium
noun
- med a radiopaque substance, such as barium sulphate, used to increase the contrast of an image in radiography
contrast medium
/ ŏ′ٰă′ /
- A substance, such as barium or air, used in radiologic studies to increase the contrast of an image. In x-ray imaging, a positive contrast medium absorbs x-rays more strongly than the tissue or structure being examined; a negative contrast medium, less strongly.
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yvlog History and Origins
Origin of contrast medium1
First recorded in 1950–55
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Example Sentences
Examples have not been reviewed.
You will need to drink a solution of a contrast medium for the scan, and there’s a very low level of radiation exposure.
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Its biggest apparent shortcoming—failure to identify cardiovascular disease—is easily explained, he says: there is no circulation to move around the contrast medium that illuminates blood vessels from the inside.
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